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Matches 1 - 50 out of 34,634

Document Document Title
WO/2020/167950A9
The present disclosure pertains to detection of abnormal, risky, or abberant conditions in a power distribution network and to corresponding trip signals being used to trip open devices such as reclosers upstream of where the abnormal co...  
WO/2021/000738A1
Disclosed are a direct-current transmission line protection method and system based on pure current characteristics. The direct-current transmission line protection method based on pure current characteristics comprises: collecting, at a...  
WO/2021/001872A1
Provided is an uninterruptible power supply device capable of responding to a variety of system abnormalities other than frequency fluctuation and voltage drop including instantaneous voltage drop. An uninterruptible power supply device ...  
WO/2020/263288A1
A multilevel converter system is provided. The multilevel converter system includes a multilevel converter and a short-circuit protection circuit. The multilevel converter includes a first segment and a second segment electrically connec...  
WO/2020/261673A1
Provided is a charging apparatus with which it is possible to minimize the progression of ion migration at a receptacle of the charging apparatus. This charging apparatus (10) is provided with: a receptacle (15) including a plurality of ...  
WO/2020/263860A1
A solid state switch (SSS) monitoring system of an electronic device includes a SSS sensing component that is electrically coupled to a solid state switch. The SSS sensing component periodically generates a clocked pulse that polls the s...  
WO/2020/262002A1
The objective of the present invention is to prevent abnormal charging from being performed even in the event that a microcomputer in a charging circuit runs out of control. A battery pack (100) is provided with: a current detecting unit...  
WO/2020/257219A1
A system comprises a superconducting magnet comprising a coil of superconducting material. The coil includes electrical terminals. The windings of the coil are separated by a metallic conductor. A control circuit is coupled to the termin...  
WO/2020/256803A1
Various embodiments provide a direct current (DC)-DC converter circuit. The DC-DC converter circuit includes a control circuit to switch the DC-DC converter circuit between a charge state, a discharge state, and a tri-state mode. As part...  
WO/2020/255972A1
This storage battery module comprises: a storage battery (BAT); a power conversion circuit (2) which includes a switching element (Q1) and raises a DC voltage inputted from the storage battery (BAT) to a first terminal (teih, teig); a sm...  
WO/2020/255440A1
A conventional ground fault direction relay device that determines a ground fault direction of its own line and performs a leakage alarm operation for the purpose of preventing an unnecessary movement (received movement) has a problem in...  
WO/2020/251607A1
A high-speed current sensing circuit configured to measure current associated with switching devices of a power generation system. The circuit includes logic for turning one or more corresponding switching devices off before failure, so ...  
WO/2020/249099A1
A battery pack detachably connected to an external device for charging or discharging. The battery pack comprises a cell unit (150), a control module (110), a first signal terminal (120) and a second signal terminal (160); the first sign...  
WO/2020/246067A1
This power receiving device (10) comprises: an exterior having a shape that can accommodate a secondary battery (60); a power receiving coil member (30) disposed inside the exterior; and a circuit board (50) disposed inside the exterior ...  
WO/2020/237341A1
The present invention relates to a method and system for identifying failure in a compressor (4) of a cooling system employing an implementation of at least a failure identification logic and a braking logic, based on monitoring of at le...  
WO/2020/239326A1
The invention relates to a system (1) comprising a control device (10) with central electronics (11) designed for the intended connection and operation of differently coded electric motors (En) with different motor characteristics (Mn) a...  
WO/2020/241659A1
According to the present invention, a switching converter 130 has an input line that receives a DC voltage VIN, and an output line connected to a smoothing capacitor 102. A switch MC2 and an inrush current prevention resistor 104 are pro...  
WO/2020/234064A1
The invention relates to a system (10) comprising at least two loads (14) which are connected to a common feed line (12) and can be switched off selectively and to the use of at least one interrupter switching element (22) with an extern...  
WO/2020/233837A1
Various embodiments of the present invention are directed to a first trip unit that is configured to be coupled to a power distribution system arranged in a Zone Selective Interlocking (ZSI) arrangement. The first trip unit includes an I...  
WO/2020/234136A1
The invention relates to an overcurrent protection device for protecting a load (11, 12; 13, 14) arranged in a DC grid (1). The load (11, 12; 13, 14) is coupled to a supply busbar (10V), which is connected or can be connected to a supply...  
WO/2020/228150A1
Provided in the present invention are an overcurrent protection circuit and a drive method therefor. The overcurrent protection circuit comprises: an overcurrent protection module and an overcurrent detection module, wherein the overcurr...  
WO/2020/228701A1
The present application provides a photovoltaic inverter, comprising a DC/AC converter, a positive direct current busbar, a negative direct current busbar, a drive control circuit, and at least one first unit. A first end of the positive...  
WO/2020/225340A1
The invention relates to a lightning protection spark gap assembly. The lightning protection spark gap assembly comprises: a lighting protection spark gap (1) having a first main connection (1a) and a second main connection (1b), wherein...  
WO/2020/225339A1
The invention relates to a lightning protection spark gap assembly. The lightning protection spark gap assembly comprises: a lightning protection spark gap (1); a safety fuse device (8) which can be triggered by a bridge initiator (7) an...  
WO/2020/225960A1
A system for estimating a severity of a bearing fault in an induction motor, uses a set of filters and a set of quantitative models designed for a set of fault frequencies. The system, upon receiving the measurements of the stator curren...  
WO/2020/224537A1
A transformer digital adaptive protection apparatus and method based on pressure characteristics, comprising: a transient oil pressure characteristic quantity measurement module, a switch quantity input module, a signal conditioning and ...  
WO/2020/222261A1
The problem to be solved is to provide a system and a method to protect the regulator rectifiers from the reverse voltage condition and the short circuit condition, and the problem is solved in the present invention by a system (110) and...  
WO/2020/221514A1
The invention relates to a load zone (1) comprising an electronic switch (2), a DC bus (3), a connection (30) for supplying the load zone (1) with electrical energy, and at least two electrical devices (4), the electronic switch (2) bein...  
WO/2020/216556A1
The invention relates to a method for determining a supply current of an electrical energy supply system (100) having a DC voltage source (10), a resistive component (20) and an electrical load (30), the resistance value of which is know...  
WO/2020/217780A1
Reverse connection protection relays (41, 42) are provided to respective power-supply systems that individually supply power from first and second in-vehicle batteries (201, 202) to a driving circuit part (10). The reverse connection pro...  
WO/2020/215763A1
The present invention relates to the technical field of high-voltage direct current transmission valve cooling devices. A DCS control method for high-voltage direct current transmission comprises: three independently functioning protecti...  
WO/2020/212300A1
There is provided mechanisms for handling time shifted data streams in a substation network (100a, 100b). A method is performed by an IED (200). The method comprises receiving (S102) a respective data stream from at least two time synchr...  
WO/2020/214649A1
Power tools including a housing, a motor, a power circuit supplying operating power to the motor through a triac, a speed sensor configured to detect a speed of the motor, a speed selector, and an electronic processor. The electronic pro...  
WO/2020/212533A1
The invention relates to a transient based method for identifying faults in an electric power transmission and/ or distribution system (100) having at least one current transmission line (L 12, L 13, L 23 ) comprising the following steps...  
WO/2020/213037A1
This power conversion device (1) comprises a power converter (10), an AC circuit breaker (CB), a switching control unit (240), and a breaker control unit (250). The power converter (10) includes an arm. The arm includes a plurality of un...  
WO/2020/211409A1
Disclosed are a vending machine, a direct-current motor control system, and a direct-current motor control method and apparatus. The control system comprises an electric motor on-line detection module, an electric motor blocked rotor det...  
WO/2020/210204A1
A power converter with ground fault protection (PCGFP circuit 100) circuit includes an input stage (101), a first voltage converter (104), and an output stage (103). The input stage is connected to a power bus to receive an input direct ...  
WO/2020/209071A1
A protection element capable of cutting off a current path safely and promptly with hardly any sparks even when a high voltage is applied thereto and a battery pack using the protection element are provided. The protection element has:...  
WO/2020/207730A1
The invention relates to a method for locating an earth fault in a DC network (1), to which multiple load zones (3, 5) can be connected, wherein each load zone (3, 5) has two symmetrically earthed load zone lines (31, 32). In the method,...  
WO/2020/209516A1
The present invention relates to an overcurrent protection inverter, and more particularly, to an inverter, which uses a leg-shunt resistor so as to detect an instantaneous maximum output current and an AD current, thereby performing an ...  
WO/2020/207729A1
The invention relates to a method for detecting a ground fault in a load zone (3) that can be connected to a direct-current network (1), the load zone having a first load zone line (31) which can be connected to a first main line (7) of ...  
WO/2020/200496A1
The invention relates to an electric grid (1000), comprising feed-ins (1010; 1011; 1012; 1013; 1014; 1015), loads (1050; 1051; 1052; 1053; 1054; 1055; 1056; 1057), and a distribution grid (2000) which is arranged therebetween and compris...  
WO/2020/200492A1
The invention relates to a device (100) for opening or closing a DC circuit with at least one busbar (200), comprising: - an electric switch (110) for opening or closing the DC circuit, - a fault current detector (120), - a trigger unit ...  
WO/2020/200495A1
The invention relates to an electric grid (1000), comprising feed-ins (1010... 1013), loads (1050... 1055), and a distribution grid (2000) which is arranged therebetween and comprises at least one busbar (200) and at least one device (20...  
WO/2020/200494A1
The invention relates to an electric grid (1000) which is equipped with feed-ins (1010... 1013), loads (1050... 1053), a distribution grid (2000) arranged therebetween, at least one semiconductor switch (2010, 2011), and at least one ele...  
WO/2020/203511A1
This power supply control device (10) has a first series circuit (6) in which a first switch (60) and a first resistor (61) are connected in series. In a second series circuit (7), a second switch (70) and a second resistor (71) are conn...  
WO/2020/204685A1
The invention relates to electrical engineering and is designed for monitoring the working parameters of a power transformer when in service and for controlling the systems of said transformer. The aim of the invention is to increase tra...  
WO/2020/200493A1
The invention relates to a method for coordinating a distribution grid of different levels of electromechanical switches and automatically electrically closable devices in a DC circuit, wherein the distribution grid is arranged between f...  
WO/2020/201129A1
The invention relates to an electronic circuit arrangement (1) for monitoring temperatures, having: an electronic temperature-determining circuit (2a, 2b, 2c), which comprises a primary temperature sensor (5) for measuring an ambient tem...  
WO/2020/192314A1
Disclosed are an energy storage system electric arc detection and protection method and a related device, used for improving the accuracy of electric arc detection in an energy storage system, enabling prompt arc extinguishing measures, ...  

Matches 1 - 50 out of 34,634